iPad-only Apps

Recommended if you have a Settings bundle, otherwise optional but recommended

58x58

Icon-Small@2x.png

Settings on iPad (Retina)

Recommended if you have a Settings bundle, otherwise optional but recommended

50x50

Icon-Small-50.png

Spotlight on iPad

Optional but recommended

100x100

Icon-Small-50@2x.png

Spotlight on iPad (Retina)

Optional but recommended

72x72

Icon-72.png

App Store and Home screen on iPad

Required

144x144

Icon-72@2x.png

App Store and Home screen on iPad (Retina)

Required

512x512

iTunesArtwork

Ad Hoc iTunes

Optional but recommended

File should be in png format, but name it without the .png extension

1024x1024

iTunesArtwork@2x

Ad Hoc iTunes

Optional but recommended

File should be in png format, but name it without the .png extension

iOS Universal Apps

Image Size

File Name

Used For

Required Status

Notes

29x29

Icon-Small.png

Settings and Spotlight

Recommended if you have a Settings bundle

50x50

Icon-Small-50.png

Spotlight

Optional but recommended

57x57

Icon.png

App Store and the Home screen

Required

58x58

Icon-Small@2x.png

Spotlight and Settings

Recommended if you have a Settings bundle

72x72

Icon-72.png

App Store and Home screen

Required

114x114

Icon@2x.png

Home screen

Optional but recommended

512x512

iTunesArtwork

Ad Hoc iTunes

Optional but recommended

File should be in png format, but name it without the .png extension

iOS Web Clip Icons

These are shown on the device home screen when saving a bookmark. This is similarin nature to the "favicon" for websites. The '-precomposed' portion of the filename prevents Apple from automatically adding gloss, rounded corners and drop shadows.